From mboxrd@z Thu Jan  1 00:00:00 1970
From: Roland Dreier <rdreier@cisco.com>
Subject: Re: Asynchronous scsi scanning
Date: Tue, 15 May 2007 19:59:39 -0700
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In-Reply-To: <20070516025121.GK10562@parisc-linux.org> (Matthew Wilcox's message of "Tue, 15 May 2007 20:51:21 -0600")
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To: Matthew Wilcox <matthew@wil.cx>
Cc: Satyam Sharma <satyam.sharma@gmail.com>, Simon Arlott <simon@fire.lp0.eu>, James Bottomley <james.bottomley@steeleye.com>, Dave Jones <davej@redhat.com>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, linux-scsi@vger.kernel.org, kernel-packagers@vger.kernel.org, "Robert P. J. Day" <rpjday@mindspring.com>

 > No, it does matter.  Your suggestion doesn't work, because
 > /sys/module/scsi_mod/parameters/ belongs to the module code.  To create
 > a new attribute there, you use the module_param() code -- and there's
 > no way to have code called when your parameter is changed.

If I'm not misunderstanding what you're talking about, there is
actually a way to have code called when a module parameter is changed:
module_param_call().

 - R.